Improvement in saw-mills



UNITED STATES PATENT GEFICE.

S. F. AMES, OF STANFORD, KENTUCKY.

IMPROVEMENT IN SAW-MILLS.

Specification forming part of Letters Patent No. 51,282, dated December5, 1865.

To au whom it may concern:

Be it known that I, S. F. AMES, of Stanford, in the countyof Lincoln andState ofKentucky, have invented certain new and useful Improvements inSaw-Mills; and I do hereby declare that the following is a full, clear,and exact description thereof, which will enable others skilled in theart to make and use the same, reference being had to the accompan yin gdrawings, forming part of this specification, in which- Figure l is aside elevation of the machine. Fig. 2 is an end view, showing moreclearly a part of my invention.

Similar letters of reference indicate like parts.

This invention has for its object more particularly the sawing of smalllogs radially into fiat rails for postand-rail fencing, though it may beapplied to other kinds of machines for cutting lumber.

The nature of my invention consists in a series of gear-wheels, wherebythe log-carriage is run back and forward Linder the saw, so that the sawcuts through the log both ways, the change, being easily and simplyeffected.

It also consists in an arrangement whereby the log is centered anddogged under the saw and properly turned and securely held in positionWhile being sawed.

A is the frame, of suitable form. B is the driving-wheel. O is acircular saw.

D is a band-wheel having a short shaft resting at its center in amovable bearing, which moves in a slot in the frame, as shown at s, Fig.1.

E is a cog-wheel secured on the end of a shaft resting on bearings fixedin the frame, and passing through under the log-carriage, and having onit a pinion or pinions to match in the rack under the carriage to run itback and forward under the saw.

F is the log-carriage. G is the log.

H is an upright worm-shaft secured by proper framing on the head-blockto hold it secure in its place, and having on its upper end a hand-Wheel, W, by which itis turned.

I is a cog-wheel fastened on the outer end of shaft J, and is turned bythe worm or shaft H.

J is a shaft resting in journals placed on each end of the head-block L.This shaft supports the front end of the log, which is centered on itand held to be rotated by dog g, the other end of the log being centeredon pin h.

K is ajointed lever forked at its lower end over wheel D, and receivingone end of thel short shaft of D through each end of said fork in slotsmade therefor. This lever is pivoted to the frame a short distance abovethe shaft of D. On the outer end of the shaft of D is secured the smallcog-wheel b, and on lever K, just above and matching with I), is securedcogwheel a. On the underside of K, at its upper end, are three notches,c, c', and c, the use of which will be hereinafter described.

L is the head-block, which rests on the front end of the carriage, andis adjusted to the length of the log and held in place by nut d.

The operation of the machine is as follows: By a beltfrom the shaftofthe saw band-wheelD is set in motion, turning with it the small wheelb, attached to its shaft. This wheehmatching with a, sets it revolvingalso, which, in turn, engages with and operates wheel E, which, by meansof pinions on its shaft, moves the carriage by Working in the racks onthe Linder side thereof. W'hen the notch c on the upper end of K isengaged with pin p, as shown in the drawings, a is thrown in gear with Eand sets it in motion, and through the pinions on its shaft the carriageand log are run back. IVhen K is so placed that notch c engages with pinp, by the motion of the lever K t is thrown out of gear with E, andwheel D, with its movable journal, is moved in slot s toward E, but notenough to throw wheel b into gear therewith. E is now stationary, andthe log can be set for the next cut. On moving K until notch c engageswith pin p, D and its shaft are brought forward until b engages with Eand moves the carriage and log forward. Having run the saw through thelog, any suitable device may be used to throw a and b out of gear. Byturning the hand-wheel W wheel I is rotated, turning the log, by meansof shaft J and its dog g, the proper distance for the next cut, andholdin git securely in place. Lever K is now set to run the log back,and the saw makes another cut, and thus the operation is continued untilthe log is entirely cut.

In sawing, the log is cut from the circumference radially toward theheart of the 10g, leaving sufficient core to hold the dogs and to keepthe log together until it is all sawed. The

manner of sawing is shown in the black lines at; G, Fig. 2.

Having thus fully described my invention, what I claim as new therein,and desire to secure by Letters Patent, is-

1. Wheel D, with its movable shaft, and lever K, with Wheels a and I),in combination With wheel E, when arranged, as described, to move thelog-carriage of a saw-mill alternately forward and back, as described.

2. Worm-shaft H, with its hand-wheel W, Wheel I, shaft J, and dog g,when combined and operating as described, to adjust or turn and holdsecurely a-log While it is being ont radially, as described.

S. F. AMES.

Witnesses:

EDWARD BEBE, G. A. C. SMITH.

